Question

What is the perimeter? and what unit should i use?

Answer 1

The given information is:

- 7-gon: it has 7 sides.

- a=15 ft

- s=14 ft

The perimeter, is the sum of the side lengths, as it has 7 sides, then its perimeter is:

`\begin{gathered} P=7s \\ P=7*14ft \\ P=98ft \end{gathered}`

Now, the area is given by the formula:

`\begin{gathered} A=(7)/(2)(s*a) \\ \\ A=(7)/(2)(14ft*15ft) \\ \\ A=(7)/(2)(210ft^2) \\ \\ A=(1470ft^2)/(2) \\ \\ A=735ft^2 \end{gathered}`

The area is 735 square feet